class TestLcdDigitViewModel(unittest.TestCase):
def setUp(self):
self.view_model = LcdDigitViewModel(FakeLogger())
def test_by_default_button_disabled(self):
self.assertEqual('disabled',
self.view_model.get_button_convert_state())
def test_when_entered_digits_button_enabled(self):
self.view_model.set_digits('10')
self.assertNotEqual('disabled',
self.view_model.get_button_convert_state())
def test_when_entered_not_digits_button_not_enabled(self):
self.view_model.set_digits('hello')
self.assertEqual('disabled',
self.view_model.get_button_convert_state())
def test_when_entered_negative_digits_button_not_enabled(self):
self.view_model.set_digits('-520')
self.assertEqual('disabled',
self.view_model.get_button_convert_state())
def test_when_entered_decimal_number_button_not_enabled(self):
self.view_model.set_digits('52.3')
self.assertEqual('disabled',
self.view_model.get_button_convert_state())
def test_can_retrieve_digits_text(self):
self.view_model.set_digits('10')
digits = self.view_model.get_digits()
self.assertEqual('10', digits)
def test_when_entered_digits_then_clear_digits_button_disabled(self):
self.view_model.set_digits('100')
self.view_model.set_digits('')
self.assertEqual('disabled',
self.view_model.get_button_convert_state())
def test_get_lcd_digits(self):
self.view_model.set_digits('1')
self.view_model.click_convert(26)
self.assertEqual('... \n..| \n..| \n', self.view_model.get_msg_text())
def test_get_string_from_lcd_digits(self):
lcd_digits = LcdDigitsModel('1')
self.assertEqual(
'... \n..| \n..| \n',
LcdDigitViewModel.get_string(lcd_digits.lcd_numbers, 1000))
class TestViewModelFakeLogging(unittest.TestCase):
def setUp(self):
self.view_model = LcdDigitViewModel(FakeLogger())
def test_logging_init(self):
self.assertEqual(
['LCD digit application is running.', 'Button is disabled.'],
self.view_model.logger.get_log_messages())
def test_logging_set_digits(self):
self.view_model.set_digits('100')
self.assertEqual('digits set = 100',
self.view_model.logger.get_last_log_message())
def test_logging_enable_button(self):
self.view_model.set_btn_enabled()
self.assertEqual('Button is enabled.',
self.view_model.logger.get_last_log_message())
def test_logging_disable_button(self):
self.view_model.set_btn_disabled()
self.assertEqual('Button is disabled.',
self.view_model.logger.get_last_log_message())
def test_logging_get_lcd_digit(self):
expected_messages = [
'LCD digit application is running.', 'Button is disabled.',
'Button is enabled.', 'digits set = 111', 'Button is clicked.',
'The answer:\n... ... ... \n..| ..| ..| \n..| ..| ..| \n'
]
self.view_model.set_digits('111')
self.view_model.click_convert(26)
self.assertEqual(expected_messages,
self.view_model.logger.get_log_messages())
def test_logging_get_lcd_digit_with_incorrect_value(self):
self.view_model.set_digits('a10')
self.view_model.click_convert(26)
self.assertEqual(
ValueError('Input error: wrong format').__str__(),
self.view_model.logger.get_last_log_message())